How One Catches a Rak'ah

The question: From Isa ibn Ali al-Musa in Riyadh, he says: Peace be upon you, and Allah's mercy and blessings. And after that: Your Eminence, Shaykh Abd al-Aziz ibn Abd Allah ibn Baz! A greeting of honor to you.
And after that:
I wish to present my question, which concerns the prayer. I entered while the imam was bowing in the air, then I said the takbir of ihram while the imam was bowing, but he rose before I bowed with him. Did I catch the prayer or not? May Allah guide you.
The answer: If a person enters while the imam is bowing, then says the takbir of ihram, and then the imam rises before the person descends into bowing, before he is settled in bowing, then he has missed the rak'ah and does not catch it. He only catches it if he is settled in bowing before the imam rises. That is, if he descends into bowing before his imam rises, he has caught it, even if he did not recite the tasbih until after that. However, if he says the takbir for ihram and then the imam rises before he is settled in bowing, he is considered not to have caught this rak'ah, and he must make it up. Yes.
The presenter: But in this case, did he not enter the prayer with ...?
The Shaykh: He entered the prayer, but he did not bow. He missed the bowing. He missed the bowing. Yes.